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Old 06-22-2013, 11:49 AM #1
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Exclamation Cheap ebay glasses,Burn through

In another thread someone asked if anyone had timed how long it would take a >1W laser to compromise a pair of eBay glasses.
This information is only for the pair I have and as there are so many variations in the breed, do not use this as a safety guide.

Laser
Rick Trent 2.750 W 445nm.
Glasses, all that's on them is made in china.
Laser on low power 138mw none got through zero reading on LPM.
Laser on High power 2.750 W readings started at 250mw instantly and burn through was in 5 seconds.

This is what the glasses looked like after.



Don't use cheap Chinese glasses.
If someone had been wearing these glasses they would have received eye damage; before they could blink.


__________________
SAFETY FIRST, LAST AND ALWAYS
http://laserpointerforums.com/f53/la...lpm-83409.html
Cheap Ebay glasses, burn through test.
http://laserpointerforums.com/f53/ch...ugh-83419.html

All you could ever want to know about batteries
www.batteryuniversity.com

Cheap Charger danger
http://laserpointerforums.com/f44/fy...ail-82217.html

Get some safety goggles now
http://laserpointerforums.com/f53/ge...now-75799.html

How healthy is your battery
http://laserpointerforums.com/f67/ho...nce-57576.html

My first build
http://laserpointerforums.com/f51/my...ild-85283.html


Lasers
MSD 303 808nm 256mw/converted 532nm
M who knows 405nm 15mw
Qtech 405nm 95mw with Pmans focus mod
Ebay 405nm 135mw and 12mw pens
405nm Pman special 35mw made from parts he sent me.
Fast Tech 405nm 107mw
Rick Trent 445nm 2.7w Grey host
1st build 450nm PLT450B C3/ YZ-C55 145mw
NDB7675 462nm 1.8 w
515nm 130mw NDG4216
Pman special 532nm 114mw
Ebay 532nm 12mw and 13mw pens
635 ebay pen 5 mw
Qtech 650nm 100mw with Pmans focus mod
SFCR-200 650nm 290mw
Melles Griot P-50 632.8 nm 1mw HeNe
Melles Griot LHR-201-372 632.8 8mw HeNe
405nm BDR-209 800mw custom heatsink and focus by FP
GPT Laser-gard goggles
Noir ARG #60 goggles
Chargers Opus BT-C3100 V2.2 Nitecore Intellicharger i4
LPM Bluefan high range.
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Old 06-22-2013, 11:10 PM #2
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Default Re: Cheap ebay glasses,Burn through

now try it on a $30 pair will do the same ! right ,I have a $30 pair and I use my cheap ones, all glasses are just for flash back not holding beam on them, but some are not laser glasses just safety glasses. I know the ones I sale you can not see the beam even at night if you have them on .I would like to see some test a $30 or more test to see what they do, my wife got me my $30 pair so I can not burn hole in them
you right First be safe-second have fun
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Old 06-22-2013, 11:21 PM #3
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Default Re: Cheap ebay glasses,Burn through

Can you take a vid while placing the glasses in front of your LPM sensor and shining the laser onto the glasses?
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405nm >> Wickedlasers SONAR by lazeerer peak@968mW
445nm >> Kryton Smooth by lazeerer peak@2075mW
453nm >> Lipstick by rhd peak@158mW
473nm >> Optotronics RPL-B peak@112mW
515nm >> Skylasers HL peak@41mW
532nm >> Novalasers Alpha HP peak@284mW
589nm >> CNI PGL-III-A peak@89mW
594nm >> Laserglow Rigel peak@4mW
635nm >> MXDL by DTR peak@38mW
642nm >> Saillaser peak@23mW
660nm >> CR2 by lazeerer peak@524mW
685nm >> MXDL by lazereer peak@42mW

Above lasers measured with an Ophir nospin LPM


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Old 06-22-2013, 11:34 PM #4
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Default Re: Cheap ebay glasses,Burn through

These glasses where something like $8, don't remember exactly. Sold by HDE.
Your right rick the glasses you sell with your lasers work, I use them most of the time with the blues as my other orange glasses fluorescing bothers my eyes.
I'll try to do a video but I don't like to put my camera where it might get hit by a reflection from Ricks blue beast.
One hit and it would be done.
__________________
SAFETY FIRST, LAST AND ALWAYS
http://laserpointerforums.com/f53/la...lpm-83409.html
Cheap Ebay glasses, burn through test.
http://laserpointerforums.com/f53/ch...ugh-83419.html

All you could ever want to know about batteries
www.batteryuniversity.com

Cheap Charger danger
http://laserpointerforums.com/f44/fy...ail-82217.html

Get some safety goggles now
http://laserpointerforums.com/f53/ge...now-75799.html

How healthy is your battery
http://laserpointerforums.com/f67/ho...nce-57576.html

My first build
http://laserpointerforums.com/f51/my...ild-85283.html


Lasers
MSD 303 808nm 256mw/converted 532nm
M who knows 405nm 15mw
Qtech 405nm 95mw with Pmans focus mod
Ebay 405nm 135mw and 12mw pens
405nm Pman special 35mw made from parts he sent me.
Fast Tech 405nm 107mw
Rick Trent 445nm 2.7w Grey host
1st build 450nm PLT450B C3/ YZ-C55 145mw
NDB7675 462nm 1.8 w
515nm 130mw NDG4216
Pman special 532nm 114mw
Ebay 532nm 12mw and 13mw pens
635 ebay pen 5 mw
Qtech 650nm 100mw with Pmans focus mod
SFCR-200 650nm 290mw
Melles Griot P-50 632.8 nm 1mw HeNe
Melles Griot LHR-201-372 632.8 8mw HeNe
405nm BDR-209 800mw custom heatsink and focus by FP
GPT Laser-gard goggles
Noir ARG #60 goggles
Chargers Opus BT-C3100 V2.2 Nitecore Intellicharger i4
LPM Bluefan high range.
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Old 06-22-2013, 11:47 PM #5
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Default Re: Cheap ebay glasses,Burn through

Quote:
Originally Posted by DJNY View Post
Can you take a vid while placing the glasses in front of your LPM sensor and shining the laser onto the glasses?
I will test my cheap ones and the $30 on low power and see what i get will make video .
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Old 06-23-2013, 03:51 AM #6
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Default Re: Cheap ebay glasses,Burn through

I found I couldn't repeat the earlier results with the laser in the clamp. This I believe is do to a bloom of carbon forming at the start when the beam hits the plastic. In the earlier test I was holding the laser in my hand and focusing at the same time. This led to a broader area being melted and allowed the beam to penetrate before the bloom could form. The hole was much larger in the first test 4.15mm and just a pinhole for the second.

I am quite impressed with how long these glasses stood up to this level of power. The glasses let no light pass till failure. So for 445nm these will save your eyes from a strike.


First hole is the one the arrow is pointing to


This is the hole with the laser in the clamp


This is the video of the second test, it's on Photobucket just click on the pic
The LPM is on high mode and reads 10 as 1 so put a zero on the readings.


You'll see a flash about 5-10 seconds in this is where the first test penetrated.
__________________
SAFETY FIRST, LAST AND ALWAYS
http://laserpointerforums.com/f53/la...lpm-83409.html
Cheap Ebay glasses, burn through test.
http://laserpointerforums.com/f53/ch...ugh-83419.html

All you could ever want to know about batteries
www.batteryuniversity.com

Cheap Charger danger
http://laserpointerforums.com/f44/fy...ail-82217.html

Get some safety goggles now
http://laserpointerforums.com/f53/ge...now-75799.html

How healthy is your battery
http://laserpointerforums.com/f67/ho...nce-57576.html

My first build
http://laserpointerforums.com/f51/my...ild-85283.html


Lasers
MSD 303 808nm 256mw/converted 532nm
M who knows 405nm 15mw
Qtech 405nm 95mw with Pmans focus mod
Ebay 405nm 135mw and 12mw pens
405nm Pman special 35mw made from parts he sent me.
Fast Tech 405nm 107mw
Rick Trent 445nm 2.7w Grey host
1st build 450nm PLT450B C3/ YZ-C55 145mw
NDB7675 462nm 1.8 w
515nm 130mw NDG4216
Pman special 532nm 114mw
Ebay 532nm 12mw and 13mw pens
635 ebay pen 5 mw
Qtech 650nm 100mw with Pmans focus mod
SFCR-200 650nm 290mw
Melles Griot P-50 632.8 nm 1mw HeNe
Melles Griot LHR-201-372 632.8 8mw HeNe
405nm BDR-209 800mw custom heatsink and focus by FP
GPT Laser-gard goggles
Noir ARG #60 goggles
Chargers Opus BT-C3100 V2.2 Nitecore Intellicharger i4
LPM Bluefan high range.
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Old 06-29-2013, 01:11 PM #7
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Default Re: Cheap ebay glasses,Burn through

they definitely do help somewhat though. i would prefer to wear them rather that nothing at all.
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Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






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